ZoneAlarm ZoneAlarm Pro Antivirus+Firewall 2019 DLL acassembler.dll

How to Fix Acassembler.dll Problems and Download Updates

Last Updated: 12/07/2023
[Time to Read: ~3-5 minutes]

acassembler.dll is considered a type of Application Control Assembler file. It is most-commonly used in United Delivery 5.0 developed by ZoneAlarm. It uses the DLL file extension and is considered a Win32 DLL (Dynamic link library) file.

The first release in the Windows 10 Operating System for acassembler.dll was on 11/27/2019 inside ZoneAlarm Antivirus 15.8.008.18174. The latest file update released for ZoneAlarm Pro Antivirus+Firewall 2019 15.6.028.18012 was on 04/30/2019 [file version 2.2.357.0].

In this short article, you will discover detailed file information, steps for troubleshooting DLL file problems with acassembler.dll, and list of free downloads for every version that exists in our comprehensive file directory.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	acassembler.dll
File Extension:	DLL file extension
Description:	Application Control Assembler
Object File Type:	Dynamic link library
File Operating System:	Windows NT 32-bit
MIME Type:	application/octet-stream
User Popularity Rating:

Developer and Software Information
Software Developer:	AO Kaspersky Lab
Software Program:	United Delivery 5.0
Legal Copyright:	© 2018 AO Kaspersky Lab. All Rights Reserved.

File Details
Character Set:	Unicode
Language Code:	English (U.S.)
File Flags:	(none)
File Flags Mask:	0x003f
Entry Point:	0x4bbcb
Code Size:	335872

View Other acassembler.dll Information

File Info	Description
File Size:	451 kB
File Modification Date/Time:	2019:12:16 15:50:28+00:00
File Type:	Win32 DLL
MIME Type:	application/octet-stream
Machine Type:	Intel 386 or later, and compatibles
Time Stamp:	2018:03:30 09:30:31+00:00
PE Type:	PE32
Linker Version:	14.0
Code Size:	335872
Initialized Data Size:	104448
Uninitialized Data Size:	0
Entry Point:	0x4bbcb
OS Version:	5.1
Image Version:	0.0
Subsystem Version:	5.1
Subsystem:	Windows command line
File Version Number:	2.2.357.0
Product Version Number:	2.2.357.0
File Flags Mask:	0x003f
File Flags:	(none)
File OS:	Windows NT 32-bit
Object File Type:	Dynamic link library
File Subtype:	0
Language Code:	English (U.S.)
Character Set:	Unicode
Company Name:	AO Kaspersky Lab
File Description:	Application Control Assembler
File Version:	2.2.357.0
Internal Name:	ACAssembler
Legal Copyright:	© 2018 AO Kaspersky Lab. All Rights Reserved.
Product Name:	United Delivery 5.0
Product Version:	2.2.357.0
Legal Trademarks:	Registered trademarks and service marks are the property of their respective owners

^✻ Portions of file data provided by Exiftool (Phil Harvey) distributed under the Perl Artistic License.

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What are acassembler.dll Error Messages?

Dynamic Link Library acassembler.dll Errors

acassembler.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like acassembler.dll, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like MpSigStub.exe - to follow. These files were created so that multiple programs (eg. ZoneAlarm Pro Antivirus+Firewall 2019) could share the same acassembler.dll file, saving valuable memory allocation, therefore making your computer run more efficiently.

Unfortunately, what makes DLL files so convenient and efficient, also makes them extremely vulnerable to problems. If something happens to a shared DLL file, either it goes missing or gets corrupted in some way, it can generate a "runtime" error message. Runtime is pretty self-explanatory; it means that these errors are triggered when acassembler.dll is attempted to be loaded either when ZoneAlarm Pro Antivirus+Firewall 2019 is starting up, or in some cases already running. Some of the most common acassembler.dll errors include:

Access Violation at address - acassembler.dll.
acassembler.dll could not be found.
Cannot find C:\Program Files (x86)\CheckPoint\ZoneAlarm\avsys\acassembler.dll.
Cannot register acassembler.dll.
Cannot start ZoneAlarm Pro Antivirus+Firewall 2019. A required component is missing: acassembler.dll. Please install ZoneAlarm Pro Antivirus+Firewall 2019 again.
Failed to load acassembler.dll.
The application has failed to start because acassembler.dll was not found.
The file acassembler.dll is missing or corrupt.
This application failed to start because acassembler.dll was not found. Re-installing the application may fix this problem.

Your acassembler.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with ZoneAlarm Pro Antivirus+Firewall 2019), or deleted by a malware infection. Furthermore, acassembler.dll file corruption could be caused from a power outage when loading ZoneAlarm Pro Antivirus+Firewall 2019, system crash while loading acassembler.dll, bad sectors on your storage media (usually your primary hard drive), or quite commonly, a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

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How to Fix acassembler.dll Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your acassembler.dll issue. These troubleshooting steps are listed in the recommended order of execution.

Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
When you see the search box, type "System Restore" and press "ENTER".
In the search results, find and click System Restore.
Please enter the administrator password (if applicable / prompted).
Follow the steps in the System Restore Wizard to choose a relevant restore point.
Restore your computer to that backup image.

If the Step 1 fails to resolve the acassembler.dll error, please proceed to the Step 2 below.

Step 2: If recently installed ZoneAlarm Pro Antivirus+Firewall 2019 (or related software), uninstall then try reinstalling ZoneAlarm Pro Antivirus+Firewall 2019 software.

You can uninstall ZoneAlarm Pro Antivirus+Firewall 2019 software by following these instructions (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
In the search box, type "Uninstall" and press "ENTER".
In the search results, find and click "Add or Remove Programs"
Find the entry for ZoneAlarm Pro Antivirus+Firewall 2019 15.6.028.18012 and click "Uninstall"
Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall ZoneAlarm Pro Antivirus+Firewall 2019 software.

If this Step 2 fails as well, please proceed to the Step 3 below.

ZoneAlarm Pro Antivirus+Firewall 2019 15.6.028.18012

ZoneAlarm

Step 3: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many acassembler.dll error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

Hit the Windows Start button
In the search box, type "Update" and press "ENTER".
In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
If updates are available for download, click "Install Updates".
After the update is completed, restart your PC.

If Windows Update failed to resolve the acassembler.dll error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

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If Those Steps Fail: Download and Replace Your acassembler.dll File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate acassembler.dll file version. We maintain a comprehensive database of 100% malware-free acassembler.dll files for every applicable version of ZoneAlarm Pro Antivirus+Firewall 2019. Please follow the steps below to download and properly replace you file:

Locate your Windows operating system version in the list of below "Download acassembler.dll Files".
Click the appropriate "Download Now" button and download your Windows file version.
Copy this file to the appropriate ZoneAlarm Pro Antivirus+Firewall 2019 folder location:

Windows 10: C:\Program Files (x86)\CheckPoint\ZoneAlarm\avsys\
Windows 10: C:\Program Files (x86)\CheckPoint\ZoneAlarm\avsys\
Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.

GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve acassembler.dll problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.

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Download acassembler.dll Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying acassembler.dll to your appropriate Windows system directory. ZoneAlarm typically does not release ZoneAlarm Pro Antivirus+Firewall 2019 DLL files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing acassembler.dll and all other DLL files for ZoneAlarm Pro Antivirus+Firewall 2019. An incorrectly installed DLL file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

ZoneAlarm Pro Antivirus+Firewall 2019 15.6.028.18012

File Name

Software Version

File Version

Architecture

acassembler.dll

2.2.357.0

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	United Delivery 5.0
Software Version:	2.2.357.0
File Version:	2.2.357.0
File Size:	461680
File Date:	12/16/2019
MD5 Checksum:	dfbb22282f265d7317e498319596dc22
SHA1 Checksum:	8fe1c8112ea85646a722c84cef5b1b094c3028f0
SHA256 Checksum:	6e743718dc824f524ecbcb3978ccb064a09584767fddf3bd3722efbe10a52a81
CRC32:
File Directory Location:	C:\Program Files (x86)\CheckPoint\ZoneAlarm\avsys\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	0.0
Initialized Data Size:	104448
Linker Version:	14.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows command line
Subsystem Version:	5.1
File Modification Date/Time:	12/16/2019

ZoneAlarm Antivirus 15.8.008.18174

File Name

Software Version

File Version

Architecture

acassembler.dll

30.5.91.0

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Coretech Delivery
Software Version:	30.5.91.0
File Version:	30.5.91.0
File Size:	571184
File Date:	12/06/2019
MD5 Checksum:	f7bcfb0c034b6fe1cb6ba3a5e7fec9e7
SHA1 Checksum:	614a1664bd0553fc23d871af8c8063d650fa6470
SHA256 Checksum:	bb35ad9faccf0d2bb385e16f85eaff81a2e22fc2a715a542fb899a6a87677507
CRC32:
File Directory Location:	C:\Program Files (x86)\CheckPoint\ZoneAlarm\avsys\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	0.0
Initialized Data Size:	128000
Linker Version:	14.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows command line
Subsystem Version:	5.1
File Modification Date/Time:	12/06/2019

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DLL Files Related to acassembler.dll

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Microsoft.Office.Irm.M...	Microsoft MSO IRM Protector	Microsoft.Office.Irm.MsoProtector (1.0.3557.0524)	46952	C:\Users\Bill\AppData\Local\
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api-ms-win-crt-utility...	ApiSet Stub DLL	Microsoft® Windows® Operating System (10.0.10586.212)	19136	C:\Users\Tester\AppData\Local\

Other Files Related to acassembler.dll

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
api-ms-win-core-sysinf...	ApiSet Stub DLL	Microsoft® Windows® Operating System (10.0.10586.212)	19648	C:\Program Files (x86)\CheckPoint\ZoneAlarm\avsys\
api-ms-win-core-synch-...	ApiSet Stub DLL	Microsoft® Windows® Operating System (10.0.10586.212)	20672	C:\Program Files (x86)\CheckPoint\ZoneAlarm\avsys\
api-ms-win-core-memory...	ApiSet Stub DLL	Microsoft® Windows® Operating System (10.0.14393.33)	18624	C:\Program Files (x86)\CheckPoint\Install\
ShutdownPerformanceDia...	Binary Disk Image	ZoneAlarm Pro Antivirus+Firewall 2019 15.6.028.18012	9694	C:\Windows\System32\wdi\
api-ms-win-core-string...	ApiSet Stub DLL	Microsoft® Windows® Operating System (10.0.14393.33)	18112	C:\Program Files (x86)\CheckPoint\Install\

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